Wick



. Feb.; 7, 1939. l F. AQ .JEFERSN WICKA Filed'oct. 14, 195e .sbesosfilling \sbes20s warp Y Patented Feb.7,1939

PATENT OFFICE WICK v FrankrA. Jefferson, St. Petersburg, Fla.Application October 14, 1936, Serial No. 105,607

4 Claims.

This invention relates to improvements in Wicks,

and its objects are as follow:

First, to provide a wick which has a body of highly absorptive material,to readily lift the oil 5 .by capillary attraction, and a margin whichis also composed of absorptive material but which will not be charred bythe flame burning at the edge thereof.

Second, to provide a Wick of the foregoing zcharacter in `which the mainbody is mainly composed of cotton and the rmargin'is solely cornposed ofasbestos, the margin and body being tied together by a binding threadwhich is also of asbestos.

Third, to combine a wick with the latter chary acteristics, with a tubethat will adapt it to oil j frstoves, heaters, and the like, theforegoing asbestos margin being made Ythicker than the cot- 1 ton bodyso that the margin has a suflciently ytight frictional fit in the tubeto prevent its slipping down or crawling up in the tube, further toprevent the flame from getting below the asbestos margin and burning thecotton away.

Other objects and advantages will appear in the following specification,reference being had to the accompanying drawing, in which:

Figure 1 is a partially elevational and sectional view illustrating theimproved wick combined with a, tube for use in a stove,

Figure 2 is a diagrammatic view illustrating the details as to how thefabric body of the wick is made,

Figure 3 is a detail side elevation of a portion of vthe fabric,particularly illustrating the com- ,H parative sizes of the body andmargin and illustrating some of the binding thread,

Figure 4 is anr enlarged section taken substantiallyon the line 4-4 ofFigure 1,

. Figure 5 is a detail side elevation illustrating Figure 6 is a detailelevation showing how a section of the fabric in Fig. 3 is cut off tomake a lamp Wick.

In carrying out the invention provision is made 45 of .a fabric body I(Fig. 3) which, as will be seen by the distinction in the shading,consists of a main body 2 and a margin 3. The main body 2 .mainlyconsists of cotton thread or some other highly absorptive material. Themargin 3 con- 50 sists solely of asbestos thread or some othernoninflammable but also absorptive material.

Attention is directed to Fig. 2 which discloses the details of thefabric. The previously mentioned body 2 comprises the cotton warpthreads 55 4. The margin 3 comprises the absorptive warp the adaptationof the wick as a heater wick, and n threads 5. These two classes ofthreads run longitudinally of the fabric and they are held together by abinding thread 6 which is composed of asbestos and constitutes thefilling as is presently made plain. 5

The asbestos threads 5 are a fraction thicker than the cotton threads 4.The result is that the marginy 3 (Figs. 1 and 4) is slightly thickerthan the main body 2. To illustrate one example of the Vdifferences inthickness, the body 2 will be made .95 thick and the margin or rim 3.97" thick. The purpose and advantage of this slight extra thickness orthe margin isthree-fold:

Reference is made to Fig. 4 wherein the wick is shown combined with atube 'I for the purposes of an oil stove. By virtue of the margin 3having the slightly excess thickness the wick is first prevented fromcrawling up in the tube, second, prevented from sagging in the tube,and, third, makes such a good joint that the flame of the burning oil atthe edge 8 will not get below the asbestos margin and burn the cottonwicking.

In order to arrive at the arrangement in Figs. 1 and 4 it is necessaryto cut off a suitably long portion of the fabric I and fasten the endstogether so as to make the tube, using staples (not shown) or somesuitable equivalent. The tubular j wick is then fitted in the tube 'I(Fig. 4) where it is held at the bottom by tabs 9. The marginal top issupported in the tube in the manner already described.

When it is desired to provide a heater wick, as in Fig. 5, it isnecessary to have a portion Ill ofthe wicking extend below the tube' II.Here the wicking is held solely by the frictional contact by theoversize margin 3 and and the adjacent wall of the tube II. In each ofFigs. 1, 4 and 5 the tubes have perforations. In Fig. 1 they are in theform of round holes, while in Fig. 5 they are in the form of slots. Ineach case the customary toothed wheel by Which the lwick is adjusted upand down will engage in the perforations for the purpose stated.

But in Fig. 6 the corresponding toothed wheel (not shown) grips thefabric directly as is commonly done in adjusting a lamp wick.

In Fig. 6 the lamp wick is designated I2. This is a perfectly flatpiece, and comprises a section cut off from one end of the fabric I(Fig. 3). At this point it is desired to explain more in 50 detail howthe fabric I is made.

There is no ordinary limit to the length in v which the fabric I (Fig.3) can be manufactured.

It is made on any simple loom. The threads 4 and 5 (Fig. 2) are the warpthreads as, in fact, 55

they are designated on the drawing and referred to in this description.These warp threads` are raised and lowered by the harnesses of the loomin the customary manner of Weaving, and as the harnesses are alternated,the shuttle inserts the asbestos lling 6 which becomes the bindingthread.

The proportions of the cotton and asbestos are approximately 60% cottonand 40% asbestos. The actual proportions, obviously, can be varied alittle, but they are substantially correct as stated, with the clearintent that the predominating amount of cotton shall serve the readyabsorption of the oil while the less amount of asbestos Will also aid inabsorbing the oil, but will insure the prevention of any charring orburning of the cotton.

.I claim:

1. A wick composed of a body stratum of inflammable and absorptivethreads, a flame-edge comprising a marginal stratum of non-inammable andabsorptive threads, said strata being in edge to edge contact, an-d abinding thread of non-inammable and absorptive material interwoven withthe threads of both strata from the name-edge to the opposite edge.

2. A Wick composed of a body stratum of inflammable and absorptivethreads, a ame-edge comprising a marginal stratum thicker than said bodystratum of non-innammable and absorptive threads, said strata being inedge to edge contact, and a binding thread of non-inammable andabsorptive material interwoven with the threads of both strata from theflame edge to the opposite edge.

3. A textile fabric wick, said 'Wick consisting of a body of cotton warpthreads, a margin for a flame-edge consisting of asbestos warp threadsin edge contact with one edge of rsaid cotton body,

and a lling of asbestos thread interwoven with the threads of both thecotton body and the asbestos margin, said filling thread extending Vfromthe name-edge of said margin to the opposite edge of said body. e Y

4. A wick composed of a body of cotton warp threads, a margin ofasbestos warp threads which are larger than said cotton warp threads,thereby making said margin thicker than said body, an asbestos fillingthread interwoven with the body and margin threads, extending from thefar edge of the margin tothe far edge of the body Yand securing the nearedges of said body and margin in tight contact, and a tube in which thewick is contained, with a portion of which tube the outer surface ofthev asbestos margin makes frictional contact, said body being suspendedmidway ofv the thicknessy of the asbestos margin so that there is aspace between the body and the tube.

FRANK kA. JEFFERSON.

